public class A {
    public static void main(String[] args) {
    yonghu s = new yonghu();
    s.shuchu();
}

}
class yonghu {
    char zhanghao;
    char yonghuming;
    char mima;
    public int shuchu(){
      return(this.zhanghao+this.yonghuming+this.mima);
    }
}